A small number were equipped with floats for service with air-sea rescue squadrons

The L-5 Sentinel was a versatile light unarmed
aircraft. It had a good short field capability and was used for
everything from spotting for artillery
to evacuation of casualties. Some 85% of all observed artillery fire on Saipan was directed by OY-1
Sentinels
(the Navy version of the aircraft) launched from escort carriers.
A single OY-1 could direct five tons of shells every three minutes at
any target in sight, which compared favorably with even the heaviest bombers.